21187746

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{4073}}^1$

素因数の和:4115

約数の個数: 36

約数和(自身を含む): 48778002

約数和(自身を除く): 27590256

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 289, 306, 578, 867, 1734, 2601, 4073, 5202, 8146, 12219, 24438, 36657, 69241, 73314, 138482, 207723, 415446, 623169, 1177097, 1246338, 2354194, 3531291, 7062582, 10593873, 21187746]

約数ペア:

[(1, 21187746), (2, 10593873), (3, 7062582), (6, 3531291), (9, 2354194), (17, 1246338), (18, 1177097), (34, 623169), (51, 415446), (102, 207723), (153, 138482), (289, 73314), (306, 69241), (578, 36657), (867, 24438), (1734, 12219), (2601, 8146), (4073, 5202)]